Molding and the forming of sand molds



June 13,1933. J. w. HARTLEY MOLDING AND THE FORMING OF SAND MOLDS Filed Sept. 9, 1932 2 Sheets-Sheet I a m I/IL 1 m u. L n i. u n a i r b fu r Lip. .I .||lll1| IUHHMHHMMHI I IHHHHmU m I I I l l l I l I I I i I l I I I l I l l l I| l. m 5 -r -155 .T. 7 I

lfllllll llllll llll Fig. 2. "w

mmmuu m 11m mm ulmlmv iHlIlIllllllllllllllllllllll'lllllli June 13, 1933. J HARTLEY 1,913,485

MOLDING AND THE FORMING OF SAND MOLDS Filed Sept. 9, 1952 2 Sheefs-Sheet 2 Fig. 3.

5Y- (Y 14 i Patented June 13, 1933 r r H l n g r i STATESPATENTOFFICE JOHN WILLIAM HART EY, or sronnnnomnn momma iiN-D 'rHnjFoR rI-Ns or SAND oms v.;-Application filed September il,l932iSerial 632,309 and in Great Britain September 24,1931. This invention relates to molding and the readily detached When required. This side 7 I forming of sand molds." 13 has',projecting ends whichfit closely and p The object of the invention is to: enable embrace the en s ofthe-openside of the'b'ox moldsffor many articles to be morefrapidly 13. To the interior ofthis' side ofthe bo'x formed in-sand orother suitable medium With is secured a half pattern 'o'rpatterns', and a less labour than heretofore. further corresponding half pattern or pat A furtherobj'ect of the invention is to per.- terns is secured to (the interior of: the oppo- Init of chilled surfaces being readily formed site side of the box. 1 The box 13 'is-slid'a-bleu on'the cast ngs. V along the plates ,lOI In fillingsand into the 19 A further objectof the invention is todisbox a'hoppe'r is placed over the top thereofpense with the mold boxes or snapfflas'ks at; and the sand rammeddown aboutthe pattern present used for holding eachindividualsand in the usual manner untilthe bo'xis iull. mold duringthe molding operation. Y T The hopper is then'removed, the clamps 14 A further. object of the invention is to disengaged andthe "side 13 detached. The economize inflo'or space. 5

ll sand mold is thenpushed along the plates ."R f i to the drawings which form a 10 up to the fence'12', thus Wasting one half part ofthis specification? i j i of the first sandmold formed; the"box is v -Figur'e 1 is aside elevation of part of a then. W thdravvn; the side 13- replaced and platform was mold-box adapted to. t l sand ramlned in aga n; the'sec-ond sand mold along it.' I V j is then; after removlng the'sidei13 fpnshed Figure) isa'plan thereof. ,o r i v v V "In Figures 1 and 2 a length oftheplatiorm fi1 f d' bet c n the tWO blocks of -sand, is'broken away toffa'cilitate illustration. andiarhalt moldfis left on -the secondblock Figure 3 is an elevation of afurther length e irdto up "to, the process being of the platform]showing al o t a lli g .,-repeated' asrequired unbllthdplates'1Qa're7 table to beherein'after referredtoi V cqvered W l s- T i l b ii' Figures eli'ando are levftionsof the trav 1 along the p a s bya' carriage th elling mold-box drawn to], an enlarged scale g; fia g rnnner Wheels 15 "r1d1n g "on and andillustrating two forms ofimecha'nism for Q g g g W t e' g f Si -1d plates; Whilst up to thefirston'e; a'complete sand mold is 3 pushing oil adetachable 'side fromlthemold- "pinions 16 gearing with racks l'z ensurethe of}the -series of plates'10. .The sand or'mold 'er'a'tediby cranks box rsuchmechanism being omitted from Fig P l travel 9 h mold rbOX- Plates' l8 ures l and 2 for the sake of clarity in 'ill'u's'tm serve as dust sh elds for the bearm'gsof the tion" w I l y v I Wheels "15; A'travelling'table 19 "Figure 3 7 7 Figure G illustrates adetailtob'ej erred 1S p j l fid W h UD Q he m k 7v and b0. i V 'carriesthe sand hopper,iloose hand tools, and O h f1( f fth ff j idwbg@glik also lifting'gear 27 and acounterweight 28 series of plates 10' are supported tyan 'under I for l fting or removing the side l3 fromthe frame 11 tofor'm a flatleveiw rking su'rfle l s be n e a i tmay a face; the, t opvandjbott om 'siurfaces and the, Q y tn l enmetal hopper f or'guid th edgesof the plates aremachinedso that the molten m t QQ' S l g 'lnt'O I the "Sand plates; may bemreversed. andflb oth f surfaces I Q T l e lde 13* 0f tl1e mold box, usedfandthe Edges of the; plates used for as h mj lre 4,1s adaptedtobe pushed V ,guiding the moldboxl o. 'A'transver f n away from the box on the release of the 'se-'- 1 angigjpht gg ig j idgd e r";- end, curing clamps aforesaid push rods-2O p boXQisjinithe form of arectan gular openzontalcrossshaftQQfcarrying-operating topped and open bottomed framing' lgha vhandle 23, preferably at'or"aboutiitscentre';

slightly tapered'ends, one sideil being or, as shown in'Eijgure .5,a sliding rack 24 loose, or removable and lsecured in position may be'si bstituted forthepush rod s,"pinions so that it canjbe- 25 being fprovided one ea ch end 'of the shaft 22, the shaft :22 being operated by a reversible ratchet and pawl instead of the fixed handle 23 shown in Figure 4-.

The surface of the plates 10 is used to form the bottom of the mold in cases where a that sand may be rammed beneath them; the

depth of the mold box may be increased. so that when rammed up full with sand there is sufficient body of sand above the pattern to provide runners for the head of metal required for the pattern. here patterns are flaton one side the pattern or patterns is or are preferably not secured to the loose side 13 of the'box but to the main fixed portion thereof; the joint between successive sand molds in this case is not in the centre of the pattern as previously described but upon the plain face of the loose side which forms the flat sand face of the mold and also the joint. In an alternative or additional method of ensuring the correct alignment of the travelling mold box, guides may be attached to the ends of the box and also to the loose side adapted to engage with the edges of the plates as the mold box slides along the guides being preferably in the form of rollers 26, 26 Figures 5, 6, one 26 rigidly mounted and the other 26 being under the control of afspring 26 incorporated in the bracket tending to keep it in cont-act with the edge of the plates.

The runner wheels of the travelling table 19 may, by making the mold box 13 and fence l2 slightly narrower, travel along the edges of the plates, orupon separate rails, instead of alongthe racks 17.

The molds may be rammed up by any well known method of ramming and the sand may be slung into the mold box byany well known method of sand slinging; a ramming appliance may be attached to the travelling table 19 to ram the sand either by hand or other power. A portable hydraulic, pneumatic or other device may be used for squeezing or pressing the mold box horizontally inwards similar in action to a portable riveter when closing a rivet, such device being conveniently carried by or from the table 19 or upon the racks or rails alongside the platform. 7

Having now described my invention, what I claim as new and desire to secure by Letters Patent is z 1. Apparatus for use in molding and the forming of sand molds comprising a flat level working surface, an open-bottomed moldbox movable along said surface, and a removable side to said mold-box, said moldbox being adapted to have sand molds formed therein, to carry such sand molds to an appropriate position on the working sur-' face, and on the detachment of the removable side to deposit such molds adjacenteach other ready to receive the molten metal.

2. Apparatus for use in molding and the forming of sand molds comprising a flat level working surface, an open-bottomed to said mold-box, and securing elements on 7 said mold-box, said elements being adapted to hold said removable side in position.

l. Apparatus for use in molding and the forming of sand molds comprising a flat level working surface, an open-bottomed mold-box, movable along said surface,.a removable side to said mold-box, internally tapered ends on said mold-box, and securing elements on said mold-box for said removable side. Y H

5. Apparatus for use in molding and the forming of sand molds comprising a flatlevel working surface, an open-bottomed moldbox movable along said surface, a removable side to said mold-box, and means operative in moving said removable side from contact with the sand ,in said mold-box when required.

6. Apparatusfor use in molding and'the V forming of sand molds comprising a flat level working surface, an opensbottomed mold-box movable along said surface, a removable side to said mold-box, means operative in moving said removable side from contact with the sand in said mold-box, internally tapered ends on said mold-box, and securing elements on said mold-box for said removable side. 7

7. 'Apparatus for use in molding and the forming of sand molds comprising a flat level working surface, an open-bottomed moldboxmovable along said surface, a vertical fence member extending upwardly from said surface and adapted to receive the first of a series of molds formed in said mold-box against one of its faces, and a removable side v,-

to said mold-box.

8. Apparatus for use in molding and'the forming of sand molds comprising a fiat level Working surface, a vertical fence member extending upwardly fromsaid working surface, an open-bottomed mold-b'oxfmovable along said surface, a removable side to said mold-box, internally tapered ends; on said moldbox, and securing elements on said mold-"box for said removable side.

9. Apparatus for use in molding and the I forming of sand molds comprising a flat level working surface,-a vertical fence member extending upwardly from said working surface, an open-bottomed mold-box movable along said surface, a removable side to said Vmold-box, means operative in moving said removable side from contact'with the sand in said mold-box, internally tapered ends on said mold-box, and securing elements on said mold-box for said removable side; I

'10. Apparatus for use in molding andthe forming of sand molds comprising a flat level :working surface, an open-bottomed moldbox movable along said surface,

4 a removable side to said mold-box, pinions associated with said mold-box, and racks at the sides of said working surface, averticalv fence member extending upwardly face, an open-bottomed mold-box movable alongsaid surface, pinions associated with said mold-box and-racks therefor at the sides .of said working surface, a removable side .to said mold box, internally tapered ends on said mold-box, securing elements on said contact with the sand in said mold box, and aligningdevices forsaidmold-box.

' In witness whereof ifioation', I

J HN WILLIAM HARTLEY.

working surface, said pinions being arranged V totravel on said racks and so ensure the parallel. travel of the mold-box. 1 j

11. Apparatus for use in molding and the forming of sand molds comprisinga fiat lev- I Opembottomed. moldel' working surface, an box movable along said surface, pinions as-r sooiated with said mold-box and racksthere for at' the sides, of said working surface, a removable side tosaid mold-box, internally tapered ends on said mold-box, securing ele-J ments on said mold-boxfor saidremovable side and means operative in moving from said working sur-,

mold box for saidremovable side, means op-, erative in moving said removable side from Ihavesigned this specsaid removable side from contact with the sand in said mold-box.

12. Apparatus for use molding and the I forming of sand molds comprising a flatlevel working'surface, a vertical fence member extending upwardly froms'aid working surface, an open-bottomed mold-box movable along said surface, pinions associatedwith said 7 box for said removable side i '15. forming of sand molds comprising a flat level mold-box and racks therefor atthe sides of on said moldto said mold-box, and aligning devicesadapt-- ed to ensure the correct alignment of the mold-box along the working surface.

14. Apparatus box movable along said surface, pinions' asso oiated with said mold-boxand racks therefor for use'in molding a'nd the Y forming of sand molds comprising a flat level working surface, an 7 open-bottomed moldat the sides of said working surface, a remov+ able side to said mold-box, internally tapered ends on said mold-box, securing elements on said mold-box for said removableside, means j operative in moving said removable sidefrom' contact with the sand'in sai-d moldbox, and v aligning devices for said mold-box.

Apparatus for use in molding and the 

